I talk to a lot of Android folks. Most have already made the switch, and consider the growth of the language "explosive". That Google is opting in there only makes it better.

F# has been around a long time and while it's experiencing modest growth and I think it has a positive track, I've certainly never seen it hyped and on the tip of every tongue the way Kotlin now is within the Android space.

I think it is completely unrealistic to expect F# to gain traction in Android. Google would never support it, and I don't think the platform is open enough for others to make it happen.

well, sure, if what you mainly work on is android, then it make sense that kotlin is getting hyped

that being said, for an outsider (i mainly do BI and DB stuff), it seem like xamarin (C# and F#), flutter (Dart), react native (reasonml) .. might seem like the options to investigate first nowadays

i think outside of android development, kotlin .. is not hyped at all

Sure, but Android is one of the top 3 most deployed application environments in the world. It's a pretty big and important market.

Try to write a UWP or WPF application in F#, use EF designers with F#, follow up on Visual Studio changes related to F#.

Heck even PowerShell now has a WinForms designer.

I think, this might be because F# is community driven, and there is little interest in pushing API that is not portable to Linux

F# was always linux friendly, long before .net core

Maybe but F# has been around for much longer. It failed already to become mainstream.